/***************************************************************************/
/*                                                                         */
/*  ftspic.c                                                               */
/*                                                                         */
/*    The FreeType position independent code services for smooth module.   */
/*                                                                         */
/*  Copyright 2009 by                                                      */
/*  Oran Agra and Mickey Gabel.                                            */
/*                                                                         */
/*  This file is part of the FreeType project, and may only be used,       */
/*  modified, and distributed under the terms of the FreeType project      */
/*  license, LICENSE.TXT.  By continuing to use, modify, or distribute     */
/*  this file you indicate that you have read the license and              */
/*  understand and accept it fully.                                        */
/*                                                                         */
/***************************************************************************/


#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_INTERNAL_OBJECTS_H
#include "ftspic.h"

#ifdef FT_CONFIG_OPTION_PIC

/* forward declaration of PIC init functions from ftgrays.c */
void FT_Init_Class_ft_grays_raster(FT_Raster_Funcs*);

void
ft_smooth_renderer_class_pic_free(FT_Library library)
{
    FT_PIC_Container* pic_container = &library->pic_container;
    FT_Memory memory = library->memory;
    if (pic_container->smooth)
    {
        SmoothPIC* container = (SmoothPIC*)pic_container->smooth;
        if (--container->ref_count)
            return;
        FT_FREE(container);
        pic_container->smooth = NULL;
    }
}


FT_Error
ft_smooth_renderer_class_pic_init(FT_Library library)
{
    FT_PIC_Container* pic_container = &library->pic_container;
    FT_Error error = FT_Err_Ok;
    SmoothPIC* container;
    FT_Memory memory = library->memory;

    /* since this function also serve smooth_lcd and smooth_lcdv renderers,
       it implements reference counting */
    if (pic_container->smooth)
    {
        ((SmoothPIC*)pic_container->smooth)->ref_count++;
        return error;
    }

    /* allocate pointer, clear and set global container pointer */
    if (FT_ALLOC(container, sizeof(*container)))
        return error;
    FT_MEM_SET(container, 0, sizeof(*container));
    pic_container->smooth = container;
    container->ref_count = 1;

    /* initialize pointer table - this is how the module usually expects this data */
    FT_Init_Class_ft_grays_raster(&container->ft_grays_raster);
    /*Exit:*/
    if (error)
        ft_smooth_renderer_class_pic_free(library);
    return error;
}

/* re-route these init and free functions to the above functions */
FT_Error ft_smooth_lcd_renderer_class_pic_init(FT_Library library)
{
    return ft_smooth_renderer_class_pic_init(library);
}
void ft_smooth_lcd_renderer_class_pic_free(FT_Library library)
{
    ft_smooth_renderer_class_pic_free(library);
}
FT_Error ft_smooth_lcdv_renderer_class_pic_init(FT_Library library)
{
    return ft_smooth_renderer_class_pic_init(library);
}
void ft_smooth_lcdv_renderer_class_pic_free(FT_Library library)
{
    ft_smooth_renderer_class_pic_free(library);
}

#endif /* FT_CONFIG_OPTION_PIC */


/* END */